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1338721-47-3

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1338721-47-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1338721-47-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,7,2 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1338721-47:
(9*1)+(8*3)+(7*3)+(6*8)+(5*7)+(4*2)+(3*1)+(2*4)+(1*7)=163
163 % 10 = 3
So 1338721-47-3 is a valid CAS Registry Number.

1338721-47-3Downstream Products

1338721-47-3Relevant articles and documents

Three-component reaction for the C2-functionalization of 1-substituted imidazoles with acetylenic ketones and isocyanates

Shen, Yang,Cai, Shuying,He, Chi,Lin, Xufeng,Lu, Ping,Wang, Yanguang

, p. 8338 - 8342 (2011/11/12)

An efficient method for the direct C2-amidation of 1-substituted imidazoles with acetylenic ketones and isocyanates is reported. This three-component procedure has the advantages of catalyst-free, operational simplicity, mild reaction conditions, and good to excellent yields.

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